Now I have to wait.

'Alex, my boyfriend, is driving to the store to buy me underwear and pants that fit my new physique. I know I shouldn't drink more of the serum he bought for me on his east asian business trip but a little more won't hurt.' 

He raised the glass and drank more of the green liquide. More than he intended to.

***

Alex put the key in the front door and before he could actually open it he heard a loud breaking noise from within. His heart skipped jumped in his chest and almost unhinged the door opening it.

He was halfway up the stairs when he froze mid-run. On the top of it—only a few feet away from his face—grew the biggest cock Alex had ever seen. At first he thought it was moving, but no, it was growing bigger. It had the proportions of a baby whale and filled the whole floor on the second level.

'Alex? Is that you?' He heard the voice of his boyfriend coming from inside their bedroom. 'I've made a mistake!'

'What the fuck happened, Charlie?'

'I drank too much of your gift and before I could call for help it was too big. I don't think I can move.'

Alex reached the top of the stairs and laid hand on the gargantuan monster blocking his way. Charlie's cock was so big now that it reached Alex up to his navel. The cock started somewhere in their bedroom but Alex couldn't see the beginning of it nor his boyfriend who was still crying for help. He started to climb that thing to get to Charlie.

'Fuck, Alex! Stop jerking that thing and come and help me!' His helpless boyfriend shouted.

'I'm doing my best here! I can't reach you without climbing this … monster cock of yours.'

Alex turned his head back to the stairs when he heard another cracking sound and the breaking of wood. Charlie's cock was growing even faster now. It started to climb down the stairs; it now grew almost one foot per minute.

When Alex finally reached his boyfriend he was sweaty and out of breath. The climb has been difficult because of the soft and unforgiving surface of Charlie's dick. He was laying on his bed, his legs opened wide, and the base of the still growing shaft almost covered the whole bottom section of his body.

'Please tell me there's a way back,' he stammered. 

It took Alex a second to answer.

'I don't think so. This can't be fixed.'

'Shit.'

Alex thought about their options but there was only one thing he could imagine. He searched on the ground right next to the bed and 3 seconds later he found what he was looking for. There was still a lot of potion in the bottle he had brought with him from his trip.

'You don't want me to drink more, do you? I think my cock will soon reach the front door. You forgot to shut it, I can almost feel the summer breeze on my dick head.'

'Stop complaining. I don't want you to drink more. I want to join.'